Finding the Fourth Proportional to 30,870.08, 42,598.18 and 17,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,870.08 : 42,598.18 = 17,442.50 : x
2. Step 2: Convert to fraction form
   30,870.08/42,598.18 = 17,442.50/x
3. Step 3: Cross multiply
   30,870.08x = 42,598.18 × 17,442.50
4. Step 4: Simplify right side
   30,870.08x = 743,018,754.65
5. Step 5: Solve for x
   x = 743,018,754.65/30,870.08
6. Step 6: Final answer
   x = 24,069.22